irrationalize

[ ih-rash-uh-nl-ahyz ]
/ ɪˈræʃ ə nlˌaɪz /

verb (used with object), ir·ra·tion·al·ized, ir·ra·tion·al·iz·ing.

to make or cause to be irrational.

QUIZZES

DISCOVER THE INFLUENCE OF PORTUGUESE ON ENGLISH VIA THIS QUIZ!

We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following animal names traces its immediate origin to Portuguese?
Also especially British, ir·ra·tion·al·ise .

Origin of irrationalize

First recorded in 1890–95; irrational + -ize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for irrationalize

  • And he wishes, unhappy man, to rationalize the irrational and irrationalize the rational.

    Tragic Sense Of Life|Miguel de Unamuno
  • The poor man wants to rationalize the irrational, and irrationalize the rational.